Electronics Forum | Mon Jan 18 12:59:29 EST 2010 | deanm
Looking to find out what materials are commonly used for staking (aka. bonding) through hole components to the PCB in order to withstand vibration in a military (class 3) environment. Polyurethane coating would be applied after staking. I've found st
Electronics Forum | Mon Jan 18 15:07:12 EST 2010 | mikesewell
Usually the print specifies the material since the design is qualified with it in place. I've used several from Scotchweld 2216, Scotchweld DP190, Hysol E-20HP, to NASA outgassing qualified Masterbond 10HT.
Electronics Forum | Thu Jan 21 19:04:54 EST 2010 | jldowsey
We used to use Scotch DP460 for Apache helicopter electronics, and we mixed it with Cab-o-sil silica (texas snow) to thicken it so that it doesn't creep during cure.
Electronics Forum | Wed Jan 20 10:20:23 EST 2010 | davef
Search the fine SMTnet Archives to find threads like: http://www.smtnet.com/Forums/Index.cfm?CFApp=1&Message_ID=57768
Electronics Forum | Fri Nov 03 11:08:29 EST 2000 | Phil
Hi there!!! Actually, all mentioned ideas were significantly related to the cause of tombstoning. But, based on what DL said, you have to check the placement of your 0402. Coz, based on experience, i evaluated the different variables for the root
1 |